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Can I extract all versions of my Case Report Forms (CRF's) in one Extract (SAS XML, Excel ETC)?
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Modified on: Wed, 25 Apr, 2018 at 9:47 PM

Question: Can I extract all versions in one SAS Extract?

Answer No:

Why: Previously, all versions of your study were dumped into one export file. We found over time that this produced a misleading representation of the data when there were multiple study versions running concurrently, and columns (data fields) were added or removed between versions.

In other words, if a question was added to a form, there would be an extra column on your dataset, but the data would be empty for all the subjects which were not on that version. Just the same, if a question was deleted in a version, it would appear as though that data disappeared for ALL subjects of the study, even though it was still in the database.